Not long after a violent thunderstorm hit the city Wednesday, London dance-rock band Hot Chip hit the stage in Brooklyn’s Prospect Park.

The mostly mid-20s, hipster-heavy crowd had to wait a bit — the band began a half-hour after the scheduled 8:30 p.m. start — but it was worth it.

Hot Chip’s six players effusively thanked the audience for turning out despite the inclement weather. Then they played up a storm, with songs from each of their five albums of quirky synth-pop, including the excellent new “In Our Heads,” whose lead single, “Night and Day,” got everyone’s arms in the air.

Although the nearly 100-degree heat from earlier in the day had subsided, humidity still hung in the air. “Quite muggy,” noted keyboardist Joe Goddard. “In England we say muggy.” (So do we, Joe.)

The band was a lot like its audience — geeky, self-aware, hip to fashion, and ready to shake their stuff. Guitarist Al Doyle (also part of LCD Soundsystem, whose concert film “Shut Up and Play the Hits” was playing its one-night New York theater engagement the same day) started out wearing a white jacket, but finished the encore shirtless.

Wearing a black Felix the Cat T-shirt and alternating between keyboards, bass and walking stage-front to rap the line, “Do I look like a rapper?” (from “Night and Day”; the answer, of course, is “Not really”), Taylor came across less like an egotistical pop star than a pop fan who decided to just go for it.

So did the fans.

During “Hand Me Down Your Love,” two beefy guys began dancing hard with one other, like something out of a Milli Vanilli video, before going back to their respective girlfriends.

Meanwhile, up front, one resourceful audience member crazily twirled a large umbrella in time to the music — you know, just in case.